content/hp3562a_2.rst

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18 18
19 The unit is quite capable, since the main CPU is a 68000 (not exactly 19 The unit is quite capable, since the main CPU is a 68000 (not exactly
20 of small CPU for the time). 20 of small CPU for the time).
21 21
22 .. image:: {static}/images/hp3562a/cpu.jpg 22 .. image:: {static}/images/hp3562a/cpu.jpg
23 :alt: Picture of the main 68000 CPU of the HP3562A
23 24
24 The 8 boards are: 25 The 8 boards are:
25 26
26 - A1: Digital source and front-end interface (rev B, ref: 03562-66501) 27 - A1: Digital source and front-end interface (rev B, ref: 03562-66501)
27 - A2: CPU & GPIB controller (rev D, ref: 03562-66502) 28 - A2: CPU & GPIB controller (rev D, ref: 03562-66502)
50 This board is mainly responsible for generating the digital signals 51 This board is mainly responsible for generating the digital signals
51 that are used as input for the source DAC. It generates all sort of 52 that are used as input for the source DAC. It generates all sort of
52 noise figures, bursts, sweeps, and so on. 53 noise figures, bursts, sweeps, and so on.
53 54
54 .. image:: {static}/images/hp3562a/a1_digital_source.jpg 55 .. image:: {static}/images/hp3562a/a1_digital_source.jpg
56 :alt: Picture of the A1 Digital Source PCB of the HP3562A
55 57
56 The Timing Control section looks like: 58 The Timing Control section looks like:
57 59
58 .. image:: {static}/images/hp3562a/hp3562a_a1_timing_control_circuit.png 60 .. image:: {static}/images/hp3562a/hp3562a_a1_timing_control_circuit.png
59 :alt: A1 Timing Control block diagram 61 :alt: A1 Timing Control block diagram
90 The processing unit is a MC68000. It aims at telling each assembly 92 The processing unit is a MC68000. It aims at telling each assembly
91 which process to execute and monitor the overall functionning and data 93 which process to execute and monitor the overall functionning and data
92 processing of the instrument. 94 processing of the instrument.
93 95
94 .. image:: {static}/images/hp3562a/hp3562a_a2_block_diagram.png 96 .. image:: {static}/images/hp3562a/hp3562a_a2_block_diagram.png
97 :alt: Blocke diagram of the A2 board of the HP3562A
95 98
96 The main CPU board, with the beautiful MC68000P9 DIP64 package: 99 The main CPU board, with the beautiful MC68000P9 DIP64 package:
97 100
98 .. image:: {static}/images/hp3562a/a2_cpu.jpg 101 .. image:: {static}/images/hp3562a/a2_cpu.jpg
102 :alt: Picture of the A2 CPU board of the HP3562A
99 103
100 It comes with 2 populated M5M256BP static ram chips (32k x 8bits), for 104 It comes with 2 populated M5M256BP static ram chips (32k x 8bits), for
101 the CPU, but seems to be capable of holding 4 more of them. The CPU 105 the CPU, but seems to be capable of holding 4 more of them. The CPU
102 runs at 8MHz. 106 runs at 8MHz.
103 107
114 118
115 Memory 119 Memory
116 ------ 120 ------
117 121
118 .. image:: {static}/images/hp3562a/a38_memory.jpg 122 .. image:: {static}/images/hp3562a/a38_memory.jpg
123 :alt: Picture of the A36 memory board of the HP3562A
119 124
120 This board is described as an "extension of the read only memory of 125 This board is described as an "extension of the read only memory of
121 the system CPU board" and read/write memory used by most of the other 126 the system CPU board" and read/write memory used by most of the other
122 assemblies. 127 assemblies.
123 128
124 .. image:: {static}/images/hp3562a/hp3562a_a38_memory_block_diagram.png 129 .. image:: {static}/images/hp3562a/hp3562a_a38_memory_block_diagram.png
130 :alt: Block diagram of the A38 memory board of the HP3562A
125 131
126 The ROM section stores most programs for the HP 3562A except the 132 The ROM section stores most programs for the HP 3562A except the
127 startup routines (which are on the ROM ships of the A2 CPU 133 startup routines (which are on the ROM ships of the A2 CPU
128 bloard). 134 bloard).
129 135
130 The board allows flexibility in the number and type of ROM chipes 136 The board allows flexibility in the number and type of ROM chipes
131 used. ROM density is selected by placement of jumpers. 137 used. ROM density is selected by placement of jumpers.
132 138
133 .. image:: {static}/images/hp3562a/hp3562a_a38_rom_block_diagram.png 139 .. image:: {static}/images/hp3562a/hp3562a_a38_rom_block_diagram.png
140 :alt: Block diagram of the RAM/ROM selection mecanism on the A38 board of the HP3562A
134 141
135 142
136 The RAM section of the assembly consist of 4 32k by 8 bits static RAM 143 The RAM section of the assembly consist of 4 32k by 8 bits static RAM
137 chips as well as the arbitrer section which controls access requests 144 chips as well as the arbitrer section which controls access requests
138 to the global RAM from six devices (FFT, both Digital Filters, 145 to the global RAM from six devices (FFT, both Digital Filters,
139 Display, FPP and the system CPU). 146 Display, FPP and the system CPU).
140 147
141 .. image:: {static}/images/hp3562a/hp3562a_a38_ram_block_diagram.png 148 .. image:: {static}/images/hp3562a/hp3562a_a38_ram_block_diagram.png
149 :alt: Block diagram of the memory bus pipeline of the HP3562A
142 150
143 The Display Controller section also lies on this A38 board. 151 The Display Controller section also lies on this A38 board.
144 152
145 .. Note:: On older versions of the instruments, this board was 153 .. Note:: On older versions of the instruments, this board was
146 splitted in 2 (A3 and A8) and used less dense chips (thus, much more 154 splitted in 2 (A3 and A8) and used less dense chips (thus, much more
152 160
153 The Local Oscillator produces digital sin and cosine signals 161 The Local Oscillator produces digital sin and cosine signals
154 (synchronized with the sample rate). The sinusoidal signal is 162 (synchronized with the sample rate). The sinusoidal signal is
155 generated from a table of values stored in the ROM. 163 generated from a table of values stored in the ROM.
156 164
157 .. image:: {static}/images/hp3562a/hp3562a_a4_block_diagram.png 165 .. figure:: {static}/images/hp3562a/hp3562a_a4_block_diagram.png
158 166 :alt: Block diagram of the A4 local oscillator board of the HP3562A
159 .. image:: {static}/images/hp3562a/a4_loc.jpg 167
168 Block diagram of the A4 local oscillator board of the HP3562A
169
170
171 .. figure:: {static}/images/hp3562a/a4_loc.jpg
172 :alt: Picture of the A4 bloard of the HP3562A
173
174 Picture of the A4 bloard of the HP3562A
160 175
161 176
162 177
163 Digital Filter and Digital Filter Controller 178 Digital Filter and Digital Filter Controller
164 -------------------------------------------- 179 --------------------------------------------
242 257
243 258
244 FFT 259 FFT
245 --- 260 ---
246 261
247 .. image:: {static}/images/hp3562a/hp3562a_a9_block_diagram.png 262 .. figure:: {static}/images/hp3562a/hp3562a_a9_block_diagram.png
263 :alt: Block diagram of the A9 FFT board of the HP3562A
264
265 Block diagram of the A9 FFT board
248 266
249 The FFT board performs windowing, FFT and Inverse FFT directly from 267 The FFT board performs windowing, FFT and Inverse FFT directly from
250 and to the RAM. 268 and to the RAM.
251 It's built around a TMS230 microprocessor runningat 5MHz 269 It's built around a TMS230 microprocessor runningat 5MHz
252 270
253 .. image:: {static}/images/hp3562a/a9_fft.jpg 271 .. figure:: {static}/images/hp3562a/a9_fft.jpg
272 :alt: Picture of the A9 FFT board of the HP3562A
273
274 Picture of the A9 FFT board
275
254 276
255 277
256 Keyboard 278 Keyboard
257 -------- 279 --------
258 280
259 .. image:: {static}/images/hp3562a/hp3562a_a15_block_diagram.png 281 .. figure:: {static}/images/hp3562a/hp3562a_a15_block_diagram.png
282 :alt: Block diagram of the keyboard processor
283
284 Block diagram of the keyboard processor
260 285
261 286
262 Next 287 Next
263 ==== 288 ====
264 289

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